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    • 1. 发明申请
    • Signal processing system and method
    • 信号处理系统及方法
    • US20050159108A1
    • 2005-07-21
    • US10507449
    • 2003-03-07
    • Paul FletcherMichael Dean
    • Paul FletcherMichael Dean
    • H01Q3/26H04B7/08H04B7/10H04B7/00
    • H04B7/0848H01Q3/2605H04B7/0822
    • A phased array antenna that employs a switched least means squared architecture comprises plurality of receiving elements each having a respective weighting unit associated therewith, a summation unit, a processor, a plurality of sampling devise and a switching unit contains a switch arm having a contact at its free and, an ADC and a plurality of switch contacts corresponding to the ends of channels connected to the respective sampling devices. Each of a plurality of receiving elements is ampled by a respective sampling device prior to an incoming signal subjected to complex weighting by respective weighting units. Each of the signals sampled by the sampling device passes along respective channels to the switching unit. Thus, by switching between the contacts it is possible to vary which of the receiving elements is sampled. The processor calculates new complex weighting coefficients to be applied to the incoming signals by the weighting units using the sampled incoming signals in order to minimize a difference between an output from the summation unit y and a training signal d.
    • 采用切换最小均方平方结构的相控阵天线包括多个接收元件,每个接收元件具有与之相关联的相应加权单元,加法单元,处理器,多个采样设备和切换单元,其包含具有接触的开关臂 其空闲的ADC和多个开关触点对应于连接到相应采样装置的通道的端部。 多个接收元件中的每一个在通过各个加权单元进行复杂加权的输入信号之前由相应的采样设备放大。 由采样装置采样的每个信号都沿着相应的通道传送到切换单元。 因此,通过在触点之间切换,可以改变哪个接收元件被采样。 处理器使用采样的输入信号来计算由加权单元施加到输入信号的新的复加权系数,以便最小化来自求和单元y的输出与训练信号d之间的差。
    • 3. 发明授权
    • Signal processing system and method
    • 信号处理系统及方法
    • US07177363B2
    • 2007-02-13
    • US10507449
    • 2003-03-07
    • Paul FletcherMichael Dean
    • Paul FletcherMichael Dean
    • H04L27/28H04B7/10H04B1/10
    • H04B7/0848H01Q3/2605H04B7/0822
    • A phased array antenna that employs a switched least means squared architecture comprises plurality of receiving elements each having a respective weighting unit associated therewith, a summation unit, a processor, a plurality of sampling devise and a switching unit contains a switch arm having a contact at its free and, an ADC and a plurality of switch contacts corresponding to the ends of channels connected to the respective sampling devices. Each of a plurality of receiving elements is ampled by a respective sampling device prior to an incoming signal subjected to complex weighting by respective weighting units. Each of the signals sampled by the sampling device passes along respective channels to the switching unit. Thus, by switching between the contacts it is possible to vary which of the receiving elements is sampled. The processor calculates new complex weighting coefficients to be applied to the incoming signals by the weighting units using the sampled incoming signals in order to minimize a difference between an output from the summation unit y and a training signal d.
    • 采用切换最小均方的架构的相控阵天线包括多个接收元件,每个接收元件具有与之相关联的相应的加权单元,加法单元,处理器,多个采样设备和切换单元,其包含具有接触的开关臂 其空闲的ADC和多个开关触点对应于连接到相应采样装置的通道的端部。 多个接收元件中的每一个在通过各个加权单元进行复杂加权的输入信号之前由相应的采样设备放大。 由采样装置采样的每个信号都沿着相应的通道传送到切换单元。 因此,通过在触点之间切换,可以改变哪个接收元件被采样。 处理器使用采样的输入信号来计算由加权单元施加到输入信号的新的复加权系数,以便最小化来自求和单元y的输出与训练信号d之间的差。
    • 4. 发明授权
    • Gas compression
    • 气体压缩
    • US09022747B2
    • 2015-05-05
    • US13505861
    • 2010-11-12
    • Paul FletcherPhilip P. Walsh
    • Paul FletcherPhilip P. Walsh
    • F04B23/04F04B49/06F04B49/20F04D27/00F04B41/06F04D17/14F04D27/02
    • F04D27/001F04B23/04F04B41/06F04B49/065F04D17/14F04D27/0215F04D27/0246F04D27/0261F04D27/0269
    • A method of compressing a gas, which uses a compressor train having a plurality of discrete portions and including at least an upstream portion, a mid-stream portion and a downstream portion arranged successively in flow series. The method includes: (i) performing a first compression step by directing a flow of said gas into the upstream compressor portion and driving the upstream compressor portion to compress the gas; (ii) performing a second compression step by directing the compressed flow from the upstream compressor portion into the mid-stream compressor portion and driving the mid-stream compressor portion to further compress the gas; and (iii) performing a third compression step by directing the compressed flow from the mid-stream compressor portion into the downstream compressor portion and driving the downstream compressor portion to further compress the gas.
    • 一种压缩气体的方法,其使用具有多个离散部分并且包括至少上游部分,中流部分和下游部分的压缩机组,所述中流部分和下游部分依次以流动方式排列。 该方法包括:(i)通过将所述气体的流动引导到上游压缩机部分中并驱动上游压缩机部分来压缩气体来执行第一压缩步骤; (ii)通过将来自上游压缩机部分的压缩流引导到中流压缩机部分中并且驱动中流压缩机部分以进一步压缩气体来执行第二压缩步骤; 和(iii)通过将来自中流压缩机部分的压缩流引导到下游压缩机部分中并且驱动下游压缩机部分进一步压缩气体来执行第三压缩步骤。
    • 6. 发明申请
    • GAS COMPRESSION
    • 气体压缩
    • US20130045079A1
    • 2013-02-21
    • US13695726
    • 2011-04-28
    • Paul FletcherCaroline LambertJonathan Bygrave
    • Paul FletcherCaroline LambertJonathan Bygrave
    • F04D15/00
    • F04D27/0261F04D27/0269F04D27/0276F04D27/0284
    • An industrial system for compressing a waste gas product, such as CO2, including a compressor train having an upstream rotor portion and a downstream rotor portion arranged in flow series with said upstream portion. Each rotor portion includes one or more compressor stages and said downstream portion is arranged to rotate at a variable relative speed to that of the upstream rotor portion. Sensing equipment for the compressor train is arranged to determine one or more flow conditions and a controller is arranged to receive data indicative of said one or more sensed flow conditions. The controller is arranged to set the rotational speed of the upstream rotor portion based upon the pressure or flow rate of gas upstream of said compressor train and to set operational parameters for said downstream portion so as to maintain a desired surge margin for said upstream rotor portion.
    • 一种用于压缩诸如CO 2的废气产品的工业系统,包括具有上游转子部分和与所述上游部分流动串联布置的下游转子部分的压缩机组。 每个转子部分包括一个或多个压缩机级,并且所述下游部分布置成以与上游转子部分相对的可变相对速度旋转。 布置用于压缩机列车的感测设备以确定一个或多个流量条件,并且控制器被布置成接收指示所述一个或多个感测流量条件的数据。 所述控制器被设置成基于所述压缩机组上游的气体的压力或流量来设定所述上游转子部分的转速并设定所述下游部分的操作参数,以保持所述上游转子部分所需的喘振裕度 。